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Co-authored-by: Philipp Moritz <pcmoritz@gmail.com>
Co-authored-by: Amir Balwel <amoooori04@gmail.com>
Co-authored-by: root <kuanfu.liu@akirakan.com>
Co-authored-by: tjtanaa <tunjian.tan@embeddedllm.com>
Co-authored-by: kuanfu <kuanfu.liu@embeddedllm.com>
Co-authored-by: miloice <17350011+kliuae@users.noreply.github.com>

Co-authored-by: shujunhua1 <shujunhua1@jd.com>

TP/quantization/weight loading refactor part 2 - Refactor quantized linear logic and extend quantization support to all models (#1622)

Refactor the tensor parallelism, quantization, and weight-loading codes.

Summary of the new features enabled by this PR:
- **All models** are able to be quantized with AWQ and SqueezeLLM, and [soon GPTQ](https://github.com/vllm-project/vllm/pull/1580).
- Model loading code became much simpler.
- Support model parallelism for all MQA/GQA models when the number of key/value heads is smaller than the tensor parallel size.

Co-authored-by: timlacroix <t@mistral.ai>

Co-authored-by: Robert Irvine <robert@seamlessml.com>
Co-authored-by: root <rirv938@gmail.com>
Co-authored-by: Casper <casperbh.96@gmail.com>
Co-authored-by: julian-q <julianhquevedo@gmail.com>

Co-authored-by: Jasmond Loh <Jasmond.Loh@hotmail.com>
Co-authored-by: Zhuohan Li <zhuohan123@gmail.com>

Signed-off-by: Antoni Baum <antoni.baum@protonmail.com>

* add aquila
Signed-off-by: ftgreat <ftgreat@163.com>

* fix some bug
Signed-off-by: shunxing1234 <xw747777271@gmail.com>

* delete pdb
Signed-off-by: shunxing1234 <xw747777271@gmail.com>

* fix bugs
Signed-off-by: shunxing1234 <xw747777271@gmail.com>

* fix bugs
Signed-off-by: shunxing1234 <xw747777271@gmail.com>

* delete whitespace
Signed-off-by: shunxing1234 <xw747777271@gmail.com>

* format

* fix order

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Signed-off-by: ftgreat <ftgreat@163.com>
Signed-off-by: shunxing1234 <xw747777271@gmail.com>
Co-authored-by: ftgreat <ftgreat@163.com>

Co-authored-by: wq.chu <wq.chu@tianrang-inc.com>

Co-authored-by: woWoosuk Kwon <woosuk.kwon@berkeley.edu>